Sustained release dosage forms
Encyclopedia
Sustained release dosage forms
are designed to release a drug
at a predetermined rate by maintaining a constant drug level for a specific period of time with minimum side effect
s. This can be achieved through a variety of formulations, including liposome
s and drug-polymer conjugates (commonly referred to as hydrogels). It is the definition for the controlled release dosage form rather than sustain release.
Dosing
Dosing generally applies to feeding chemicals or medicines in small quantities into a process fluid or to a living being at intervals or to atmosphere at intervals to give sufficient time for the chemical or medicine to react or show the results....
are designed to release a drug
Drug
A drug, broadly speaking, is any substance that, when absorbed into the body of a living organism, alters normal bodily function. There is no single, precise definition, as there are different meanings in drug control law, government regulations, medicine, and colloquial usage.In pharmacology, a...
at a predetermined rate by maintaining a constant drug level for a specific period of time with minimum side effect
Side effect
In medicine, a side effect is an effect, whether therapeutic or adverse, that is secondary to the one intended; although the term is predominantly employed to describe adverse effects, it can also apply to beneficial, but unintended, consequences of the use of a drug.Occasionally, drugs are...
s. This can be achieved through a variety of formulations, including liposome
Liposome
Liposomes are artificially prepared vesicles made of lipid bilayer. Liposomes can be filled with drugs, and used to deliver drugs for cancer and other diseases. Liposomes are composite structures made of phospholipids and may contain small amounts of other molecules...
s and drug-polymer conjugates (commonly referred to as hydrogels). It is the definition for the controlled release dosage form rather than sustain release.